Make a chart to find each hidden solution. Remember, in each case you must replace each letter with the same number. Also, both sides must balance each other.

1. 7R + 1 = 6R + 2

Guess LEFT RIGHT
. . .
. . .
. . .
. . .

2. Y + 2 = 2Y - 1

Guess LEFT RIGHT
. . .
. . .
. . .
. . .

3. 4N = 2N + 42

 

 

 

4.

5. 3(P + 1) = P + 13

 

 

 

6. 5T + 2 = 3T + 2

7. A monster problem:

 

 

 

8. Create a monster problem of your own. Solve it.